Digital Diagnostic Monitoring alarm

[Yvonne]

Hello,
I keep getting a DDMRx Optical Power Low Alarm and a DDMTx Output power High warning Alarm on some nodes in the network. What would be the probable cause of these alarms?

[KirkwoodCR]

Those alarms are indicating an error on the SFP/XFP
DDMRx Low means the SFP/XFP is receiving a light power lower than the low alarm theshold meaning an issues with the device itself, the fiber run or the SFP/XFP on the other end. Check the DDM stats tab on the node.

DDMTx Output high means the SFP/XFP is transmitting very hot. Could mean a possible SFP/XFP failure at my first guess.

[Yvonne]

Thank you very much.